/* ===============================
   Voltix Glint Cyfrowa Kolej — style.css
   Geometric Structured UI — Mobile-first, Flex-only layouts
   =============================== */

/* 1) RESET & NORMALIZE */
*, *::before, *::after { box-sizing: border-box; }
html { line-height: 1.4; -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding-left: 0; list-style: none; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button { background: none; border: none; font: inherit; cursor: pointer; }
input, button, textarea, select { font: inherit; }

/* 2) THEME TOKENS */
:root {
  --color-primary: #0B2A4A; /* deep steel blue */
  --color-secondary: #00A19A; /* teal */
  --color-accent: #F2F5F9; /* light */
  --ink-900: #0A0F14;
  --ink-800: #18222C;
  --ink-700: #2B3B49;
  --ink-600: #3B4C5D;
  --ink-500: #53697D;
  --ink-300: #9AA8B6;
  --ink-200: #C8D2DB;
  --surface-100: #FFFFFF;
  --surface-200: #FAFBFC;
  --surface-300: var(--color-accent);
  --focus: #2C7BE5;

  --radius-xxs: 4px;
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 10px;

  --shadow-1: 0 1px 2px rgba(10,15,20,0.06), 0 4px 10px rgba(10,15,20,0.05);
  --shadow-2: 0 6px 14px rgba(10,15,20,0.08);
  --shadow-focus: 0 0 0 3px rgba(44,123,229,0.25);
}

/* 3) BASE TYPOGRAPHY — geometric, angular feel */
body {
  font-family: Arial, Helvetica, sans-serif; /* body font */
  color: var(--ink-800);
  background: var(--surface-200);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: "Trebuchet MS", Arial, sans-serif; /* display */
  color: var(--ink-900);
  letter-spacing: 0.02em; /* precise, structured */
}

h1 { font-size: 32px; line-height: 1.2; margin-bottom: 16px; }
h2 { font-size: 24px; line-height: 1.25; margin-bottom: 12px; }
h3 { font-size: 18px; line-height: 1.3; margin-bottom: 8px; }
h4 { font-size: 16px; line-height: 1.3; margin-bottom: 8px; }

p, li { font-size: 16px; color: var(--ink-700); }
small { font-size: 14px; color: var(--ink-500); }
strong { color: var(--ink-800); }

/* Links */
a { color: var(--color-primary); transition: color 180ms ease; }
a:hover { color: var(--color-secondary); }
a:focus-visible { outline: none; box-shadow: var(--shadow-focus); border-radius: var(--radius-xxs); }

/* 4) LAYOUT PRIMITIVES — FLEX ONLY */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Sections spacing (also provide .section class per requirement) */
section, .section { margin-bottom: 60px; padding: 40px 20px; background: transparent; }

/* Content block wrapper */
.content-wrapper {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--surface-100);
  padding: 20px;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
}

/* Required flex patterns */
.card-container { display: flex; flex-wrap: wrap; gap: 24px; }
.card { margin-bottom: 20px; position: relative; display: flex; flex-direction: column; gap: 12px; }
.content-grid { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; }
.text-image-section { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
.testimonial-card { display: flex; align-items: center; gap: 20px; padding: 20px; }
.feature-item { display: flex; flex-direction: column; align-items: flex-start; gap: 15px; }

/* 5) HEADER & NAVIGATION */
header { background: var(--surface-100); border-bottom: 2px solid var(--color-accent); position: relative; z-index: 50; }
header > .container { flex-direction: row; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; padding-bottom: 12px; }

.brand-logo img { height: 32px; width: auto; }

.main-nav { display: none; align-items: center; gap: 18px; }
.main-nav a {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 8px;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover { border-bottom-color: var(--color-secondary); color: var(--color-secondary); }

.cta-buttons { display: flex; align-items: center; gap: 12px; }

/* Mobile burger */
.mobile-menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border: 2px solid var(--ink-200);
  border-radius: var(--radius-xs);
  color: var(--ink-800);
  background: var(--surface-100);
  transition: transform 150ms ease, border-color 150ms ease;
}
.mobile-menu-toggle:hover { transform: translateY(-1px); border-color: var(--color-secondary); }
.mobile-menu-toggle:focus-visible { box-shadow: var(--shadow-focus); }

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed; inset: 0; right: 0; top: 0; bottom: 0; left: auto;
  width: 100%; height: 100vh;
  display: flex; flex-direction: column; align-items: flex-start; gap: 20px;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 20px;
  transform: translateX(100%);
  transition: transform 280ms ease;
  z-index: 999;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu-close {
  align-self: flex-end;
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 2px solid rgba(255,255,255,0.25);
  color: #FFFFFF; border-radius: var(--radius-xs);
}
.mobile-nav { display: flex; flex-direction: column; gap: 14px; width: 100%; }
.mobile-nav a {
  color: #FFFFFF; font-size: 16px; font-weight: 600; letter-spacing: 0.04em;
  padding: 12px 8px; border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xs);
}
.mobile-nav a:hover { background: rgba(255,255,255,0.08); }

/* Hide main nav and desktop CTAs on mobile */
header .cta-buttons { display: none; }

/* 6) HERO OR TOP SECTIONS */
/* Use geometric bars as subtle accent via borders */
section:first-of-type .content-wrapper {
  background: var(--surface-100);
  border-left: 6px solid var(--color-secondary);
}
.subheadline { color: var(--ink-600); font-size: 18px; }

.key-trust-indicators { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 8px; }
.key-trust-indicators li { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--ink-200); border-radius: var(--radius-xs); background: var(--surface-300); }
.key-trust-indicators img { width: 18px; height: 18px; }

/* 7) BUTTONS — angular, precise */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 18px;
  border-radius: 6px;
  font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  border: 2px solid transparent;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn:focus-visible { box-shadow: var(--shadow-focus); }
.btn:hover { transform: translateY(-1px); }

.btn-primary { background: var(--color-primary); color: #FFFFFF; border-color: var(--color-primary); }
.btn-primary:hover { background: #0E355C; border-color: #0E355C; }

.btn-secondary { background: transparent; color: var(--color-secondary); border-color: var(--color-secondary); }
.btn-secondary:hover { background: var(--color-secondary); color: #FFFFFF; }

.btn-tertiary { background: var(--surface-100); color: var(--ink-800); border-color: var(--ink-300); }
.btn-tertiary:hover { border-color: var(--color-secondary); color: var(--color-secondary); }

/* 8) FLEX GRIDS (Features, Testimonials, Lists) */
.feature-grid { display: flex; flex-wrap: wrap; gap: 20px; }
.feature-grid > div {
  flex: 1 1 260px;
  display: flex; flex-direction: column; gap: 10px;
  padding: 16px;
  background: var(--surface-100);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
}
.feature-grid > div h3 { color: var(--color-primary); font-weight: 800; }

/* Stats */
.stats-list { display: flex; flex-wrap: wrap; gap: 14px; }
.stats-list li { flex: 1 1 260px; padding: 14px 16px; background: var(--surface-300); border: 1px solid var(--ink-200); border-radius: var(--radius-xs); }

/* Services */
.service-list { display: flex; flex-wrap: wrap; gap: 12px; }
.service-list li { flex: 1 1 300px; padding: 14px 16px; border: 1px solid var(--ink-200); border-left: 6px solid var(--color-primary); background: var(--surface-100); border-radius: var(--radius-xs); box-shadow: var(--shadow-1); }

/* Process */
.process-steps { display: flex; flex-direction: column; gap: 10px; counter-reset: step; }
.process-steps li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px; border: 1px solid var(--ink-200); background: var(--surface-100); border-radius: var(--radius-xs);
}

/* Compliance & legal lists */
.compliance-list, .legal-list { display: flex; flex-wrap: wrap; gap: 12px; }
.compliance-list li, .legal-list li { flex: 1 1 300px; padding: 12px 14px; border: 1px solid var(--ink-200); border-radius: var(--radius-xs); background: var(--surface-100); }

/* FAQ */
.faq-container { gap: 18px; }
.faq-list { display: flex; flex-wrap: wrap; gap: 16px; }
.faq-item { flex: 1 1 320px; padding: 16px; border: 1px solid var(--ink-200); border-radius: var(--radius-sm); background: var(--surface-100); box-shadow: var(--shadow-1); }
.faq-item h3 { color: var(--color-primary); }

/* Case studies */
.case-study { display: flex; flex-direction: column; gap: 12px; padding: 18px; background: var(--surface-100); border: 1px solid var(--ink-200); border-radius: var(--radius-sm); box-shadow: var(--shadow-1); }
.case-study.teaser h3 { color: var(--color-primary); }
.case-study ul { display: flex; flex-direction: column; gap: 8px; }

/* Testimonials — high contrast, light background */
.testimonial-grid { display: flex; flex-wrap: wrap; gap: 20px; }
.testimonial-grid .testimonial-card {
  flex: 1 1 320px;
  background: var(--surface-100);
  border: 1px solid var(--ink-200);
  border-left: 6px solid var(--color-secondary);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
  align-items: flex-start;
}
.testimonial-card blockquote { color: var(--ink-800); font-style: italic; }
.testimonial-card p { margin-top: 4px; color: var(--ink-700); }

.awards-row { display: flex; align-items: center; gap: 12px; margin-top: 8px; color: var(--ink-600); }
.awards-row img { width: 28px; height: 28px; }

/* Contact quick/info */
.contact-quick, .contact-info-list { display: flex; flex-wrap: wrap; gap: 12px; }
.contact-quick li, .contact-info-list li { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--surface-100); border: 1px solid var(--ink-200); border-radius: var(--radius-xs); }
.contact-quick img, .contact-info-list img { width: 18px; height: 18px; }

/* Deployment areas & various lists */
.deployment-areas, .support-tiers, .support-options, .team-expertise, .partners-list, .content-categories, .resource-list, .newsletter-benefits { display: flex; flex-wrap: wrap; gap: 12px; }
.deployment-areas li, .support-tiers li, .support-options li, .team-expertise li, .partners-list li, .content-categories li, .resource-list li, .newsletter-benefits li {
  flex: 1 1 280px; padding: 12px 14px; background: var(--surface-100); border: 1px solid var(--ink-200); border-radius: var(--radius-xs);
}

/* CTA blocks */
.cta-block { background: var(--surface-300); border: 1px solid var(--ink-200); border-left: 6px solid var(--color-primary); box-shadow: var(--shadow-1); }
.cta-block .cta-buttons { margin-top: 6px; }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 8px; color: var(--ink-500); font-size: 14px; }

/* 9) FOOTER */
footer { background: var(--color-primary); color: #EAF0F6; margin-top: 40px; }
footer .container { padding-top: 28px; padding-bottom: 28px; }
.footer-columns { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-nav nav { display: flex; flex-direction: column; gap: 8px; }
.footer-nav h4, .footer-newsletter h4 { color: #FFFFFF; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.footer-legal a { color: #D6E2EE; font-size: 14px; }
.footer-legal a:hover { color: #FFFFFF; }
.footer-brand { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.footer-brand img { width: 36px; height: auto; filter: brightness(0) invert(1); }

/* 10) BREADCRUMB/ABBR tweaks */
abbr[title] { text-decoration: underline dotted; cursor: help; }

/* 11) MOBILE NAV VISIBILITY RULES */
@media (min-width: 992px) {
  .main-nav { display: flex; }
  header .cta-buttons { display: flex; }
  .mobile-menu-toggle { display: none; }
}

/* 12) RESPONSIVE LAYOUT ADJUSTMENTS */
@media (min-width: 768px) {
  h1 { font-size: 40px; }
  h2 { font-size: 28px; }
  h3 { font-size: 20px; }

  .content-wrapper { padding: 28px; gap: 20px; }

  .text-image-section { flex-direction: row; }
  .text-image-section > * { flex: 1 1 45%; }

  .feature-grid > div { flex: 1 1 300px; padding: 18px; }
  .stats-list li { flex: 1 1 300px; }
  .service-list li { flex: 1 1 360px; }
  .faq-item { flex: 1 1 360px; }
  .case-study { padding: 22px; }

  .footer-columns > * { flex: 1 1 240px; }
}

@media (min-width: 1200px) {
  .container { max-width: 1240px; }
}

/* 13) ACCESSIBILITY & FOCUS */
:focus-visible { outline: none; box-shadow: var(--shadow-focus); }

/* 14) COOKIE CONSENT BANNER & MODAL */
.cookie-banner {
  position: fixed; left: 0; right: 0; bottom: 0;
  display: flex; flex-direction: column; gap: 14px;
  background: var(--surface-100);
  color: var(--ink-800);
  border-top: 3px solid var(--color-secondary);
  box-shadow: 0 -8px 20px rgba(10,15,20,0.08);
  padding: 16px 20px;
  transform: translateY(100%);
  transition: transform 260ms ease;
  z-index: 998;
}
.cookie-banner.show { transform: translateY(0); }
.cookie-banner .cookie-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.cookie-banner .btn { padding: 10px 16px; }
.cookie-banner .btn-accept { background: var(--color-secondary); color: #FFFFFF; border-color: var(--color-secondary); }
.cookie-banner .btn-reject { background: transparent; color: var(--ink-800); border-color: var(--ink-300); }
.cookie-banner .btn-settings { background: var(--surface-100); color: var(--color-primary); border-color: var(--color-primary); }
.cookie-banner .btn-reject:hover { color: var(--color-secondary); border-color: var(--color-secondary); }

/* Cookie modal */
.cookie-modal-backdrop {
  position: fixed; inset: 0; background: rgba(10,15,20,0.5);
  display: none; align-items: center; justify-content: center;
  z-index: 1000;
}
.cookie-modal-backdrop.open { display: flex; }
.cookie-modal {
  width: min(720px, 92vw);
  background: var(--surface-100);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2);
  display: flex; flex-direction: column; gap: 16px;
  padding: 20px;
}
.cookie-modal header { display: flex; align-items: center; justify-content: space-between; border-bottom: 2px solid var(--color-accent); padding-bottom: 10px; }
.cookie-modal .cookie-categories { display: flex; flex-direction: column; gap: 12px; }
.cookie-category { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px; border: 1px solid var(--ink-200); border-radius: var(--radius-xs); }
.cookie-category.always-on { background: var(--surface-300); }
.cookie-modal .cookie-controls { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }

/* Toggle switch */
.toggle {
  position: relative; width: 44px; height: 26px; border-radius: 26px; border: 2px solid var(--ink-300); background: var(--surface-100);
  display: inline-flex; align-items: center; padding: 0 2px; transition: border-color 160ms ease, background 160ms ease;
}
.toggle::after {
  content: ""; width: 18px; height: 18px; border-radius: 50%; background: var(--ink-300);
  transition: transform 160ms ease, background 160ms ease;
}
.toggle[aria-checked="true"] { border-color: var(--color-secondary); background: rgba(0,161,154,0.1); }
.toggle[aria-checked="true"]::after { background: var(--color-secondary); transform: translateX(18px); }

/* 15) UTILITIES */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-16 { margin-top: 16px !important; }
.mb-16 { margin-bottom: 16px !important; }
.gap-8 { gap: 8px !important; }
.gap-16 { gap: 16px !important; }
.centered { display: flex; align-items: center; justify-content: center; }

.footer-nav a {
  color: #00A19A;
}

.footer-brand p {
  color: #9AA8B6;
}

/* 16) PRINT FRIENDLY */
@media print {
  .mobile-menu, .mobile-menu-toggle, .cookie-banner, .cookie-modal-backdrop { display: none !important; }
  header, footer { border: none; box-shadow: none; }
  a { text-decoration: underline; }
}

/* 17) EXTRA ALIGNMENT RULES PER SPEC */
/* Ensure vertical centering where needed */
.align-center { display: flex; align-items: center; }
.align-start { display: flex; align-items: flex-start; }
.justify-between { display: flex; justify-content: space-between; }

/* 18) PREVENT OVERLAP — consistent gaps */
section .container { gap: 20px; }
section + section { margin-top: 0; }

/* 19) ANGULAR GEOMETRIC DETAILS (subtle) */
/* Angled top border using border-image for geometric accent */
.content-wrapper.geometric {
  border-top: 6px solid var(--color-primary);
  border-right: 2px solid var(--ink-200);
  border-bottom: 2px solid var(--ink-200);
  border-left: 6px solid var(--color-secondary);
}

/* 20) READABILITY IN TESTIMONIAL/REVIEW SECTIONS */
/* Dark text on light backgrounds enforced */
.testimonial-card, .testimonial-card * { color: var(--ink-800); }

/* 21) BREADTH: ensure no grid/columns used anywhere; flex only */
/* (Intentionally no display:grid or columns used) */